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当前位置: 首页 > 文章 > 草地贪夜蛾在云南元谋县青稞、燕麦、糜子田的发生为害特征 植物保护 2020 (2) 216-221
Position: Home > Articles > Occurrence and damage characteristics of Spodoptera frugiperda on highland barley, oat and prosomillet in Yuanmou county, Yunnan province Plant Protection 2020 (2) 216-221

草地贪夜蛾在云南元谋县青稞、燕麦、糜子田的发生为害特征

作  者：
赵雪晴;陈福寿;尹艳琼;张红梅;李向永;戴剑鸿;王贵斌;李永川;谌爱东
单  位：
云南省楚雄州植保植检站;云南省元谋县植保植检站;云南省植保植检站;云南省农业科学院农业环境资源研究所
关键词：
草地贪夜蛾;青稞;燕麦;糜子;为害特征;元谋;云南
摘  要：
2019年10月31日我们在楚雄州元谋县(25.899°N, 101.791°E)青稞、燕麦、糜子和小麦田发现草地贪夜蛾Spodoptera frugiperda(J.E.Smith),发生严重。田间调查表明:青稞、燕麦、糜子和小麦的受害株(丛)率分别为90.63%、31.64%、100%和86.84%,有虫株(丛)率分别为24.65%、17.19%、12.20%和27.19%,百株虫量分别为28.13、23.05、12头和42.98头。同时,发现草地贪夜蛾在青稞、燕麦、糜子上的为害特征与在玉米上的特征不同,表现为低龄幼虫食叶蛀心,高龄幼虫切根断蘖(穗)。与在小麦上的为害特征相似:1～2龄幼虫分布于叶片和心叶上;3～4龄幼虫向下移动至中部叶片、叶鞘和近地表面的分蘖着生处;4～6龄幼虫多数躲避在麦丛基部和表土下1 cm根茎连接处和缝隙中,与地下害虫的为害特征相似,不易发现,应引起重视。
译  名：
Occurrence and damage characteristics of Spodoptera frugiperda on highland barley, oat and prosomillet in Yuanmou county, Yunnan province
作  者：
ZHAO Xueqing;CHEN Fushou;YIN Yanqiong;ZHANG Hongmei;LI Xiangyong;DAI Jianhong;WANG Guibin;LI Yongchuan;CHEN Aidong;Agricultural Environment and Resources Institute, Yunnan Academy of Agricultural Sciences;Yuanmou County Plant Protection and Plant Quarantine Station,Yunnan Province;Chuxiong Prefecture Plant Protection and Plant Quarantine Station,Yunnan Province;Yunnan Plant Protection and Plant Quarantine Station;
关键词：
Spodoptera frugiperda;;highland barley;;oat;;prosomillet;;damage characteristics;;Yuanmou county;;Yunnan province
摘  要：
On 31 October, 2019, we confirmed the heavily damage of Spodoptera frugiperda(J.E.Smith) on highland barley, oat, prosomillet and wheat in Yuanmou county(25.899°N, 101.791°E), Chuxiong prefecture,Yunnan province. Field investigation showed that, on highland barley, oat, prosomillet and wheat, the percentages of damaged plant were 90.63%, 31.64%, 100% and 86.84%, respectively; the percentages of plant with S. frugiperda larva were 24.65%, 17.19%, 12.20% and 27.19%, respectively; and the larvae densities were 28.13, 23.05, 12 and 42.98 individuals per hundred plants, respectively. At the same time, the symptoms of damage caused by S. frugiperda on wheat, highland barley, oats and prosomillet were different from that on maize. That is, the younger larvae(1 st-2 nd instars) ate leaves or bored into stem, and the older larvae(3 rd-6 th instars) cut roots and ears. Similar symptoms were found on wheat, the 1 st and 2 nd instars usually feed on tender leaves, while the 3 rd and 4 th instars moved down to the middle leaves, leaf sheaths or tillering sites near the ground surface. Most of the 4 th-6 th instars hide in the base of wheat clump, the stem base 1 cm under the soil surface, and soil gaps. The damage symptom caused by older larvae(4 th-6 th instars) was similar to that caused by underground pests, which is not easy to find in field and should be paid more attention.

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